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A Method of Flexibly Expanding Database Fields

A technology for expanding fields and databases, applied in the field of database field storage, which can solve problems such as the inability to flexibly expand data fields and the upper limit of database field storage, and achieve the effect of improving retrieval efficiency and increasing data volume

Active Publication Date: 2022-07-01
TIANJIN NANKAI UNIV GENERAL DATA TECH
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  • Summary
  • Abstract
  • Description
  • Claims
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Problems solved by technology

[0003] In view of this, the present invention aims to propose a method for flexibly expanding database fields to solve the problem that database fields have an upper limit for storage and data fields cannot be flexibly expanded

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  • A Method of Flexibly Expanding Database Fields

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Embodiment Construction

[0042] It should be noted that the embodiments of the present invention and the features of the embodiments may be combined with each other under the condition of no conflict.

[0043] In the description of the present invention, it should be understood that the terms "center", "portrait", "horizontal", "top", "bottom", "front", "rear", "left", "right", " The orientation or positional relationship indicated by vertical, horizontal, top, bottom, inner, outer, etc. is based on the orientation or positional relationship shown in the drawings, and is only for the convenience of describing the present invention and The description is simplified rather than indicating or implying that the device or element referred to must have a particular orientation, be constructed and operate in a particular orientation, and therefore should not be construed as limiting the invention. In addition, the terms "first", "second", etc. are used for descriptive purposes only, and should not be constru...

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Abstract

The invention provides a method for flexibly expanding database fields. The query statement method is the same as that of common statement query. When reading from the database file, the common field is read from the database file, and the extended field reads address information from the database file. Then, the field data is retrieved from the secondary cache or the big data storage medium through the address information, which realizes the effective expansion of the fields limited by the size of ordinary data, and makes the ordinary data fields also have the possibility of infinite expansion; realizes the flexible expansion of data fields. , while enabling customers to operate field data without feeling. The method for flexibly expanding database fields described in the present invention expands the upper limit storage of common fields, so as to finally achieve a highly effective satisfaction of users' non-inductive access to business data.

Description

technical field [0001] The invention belongs to the field of database field storage, in particular to a method for flexibly expanding database fields. Background technique [0002] Abundant database fields can be said to be a very important business carrier for database users. What kind of database field type is most suitable for storing what kind of data has always been a problem that users must consider. For developers of database products themselves, it is a daunting task to meet customers' storage requirements to the greatest extent possible. How to break through the limitations in the current database fields is of great significance. SUMMARY OF THE INVENTION [0003] In view of this, the present invention aims to propose a method for flexibly expanding database fields, so as to solve the problem that database fields are stored with an upper limit and data fields cannot be flexibly expanded. [0004] In order to achieve the above object, the technical scheme of the p...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G06F16/2455
CPCG06F16/24552
Inventor 崔杰
Owner TIANJIN NANKAI UNIV GENERAL DATA TECH
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